<template>
  <div class="my-tab-bar">
    <div class="tab-item" v-for="(item,index) in list" :key="index"
    :class="{current:index===acriveIndex}"
    @click="clickFn(index,item.componentName)"
    >
      <!-- 图标 -->
      <span class="iconfont " :class="item.iconText"></span>
      <!-- 文字 -->
      <span>{{item.text}}</span>
    </div>
  </div>
</template>

<script>
export default {
  props: {
    list: {
      type: Array,
      required: true,
      validator(val) {
        if (val.length < 2 || val.lengt > 5) {
          console.error('poro list must between 2 and 5')
          return false
        }
        return true
      }
    }
  },
  data(){
    return {
      acriveIndex:0,
    }
  },
  methods:{
    clickFn(index,componentName){
      this.$emit('comName',componentName)
      this.acriveIndex=index
    }
  }
}
</script>

<style lang="less" scoped>
.my-tab-bar {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 50px;
  border-top: 1px solid #ccc;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: white;

  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

.current {
  color: #1d7bff;
}
</style>